The answer to your original question abounds in these posts. The most simplisitic answer is that you need a thorough understanding of sound, PA management, EQ structuring and a basic understanding of the physics of sound, in particular dealing with high level sound in confined spaces.
It's clearly not the answer you're hoping to get here. You might get the answer you're looking for, with less preaching and criticism, by posing the question a bit differently.
It seems like you want a new 'rig' and are unhappy with your sound in any situation. Please help him find a rig so this madness can end. We'll never force our viewpoint onto others not interested in entertaining the ideas.
It's clearly not the answer you're hoping to get here. You might get the answer you're looking for, with less preaching and criticism, by posing the question a bit differently.
It seems like you want a new 'rig' and are unhappy with your sound in any situation. Please help him find a rig so this madness can end. We'll never force our viewpoint onto others not interested in entertaining the ideas.